Make a single post type a child of certain page

Hello all.

I want to be able to FORCE a single post type.php file to be a child of another page.... so that the menu that i am using appears on that page.

This plugin makes a certain sidebar menu appear on a page relative to its parent. This works like a charm on all pages except single post type pages.

Can i force a single post type.php to be a child of a certain page? Im not talking about permalink rewrite here, i mean actually have the cms think that the single post type is a child of that page.